Psychometric evaluation of a Brazilian version of the impact of weight on quality of life (IWQOL-Lite) instrument
Purpose The impact of weight on quality of life (IWQOL‐Lite) is a self‐administered instrument that assesses quality of life in obesity. It is composed of 31 items and five domains (physical function, self‐esteem, sexual life, public distress, and work). The aim of the present study was to evaluate...
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| Veröffentlicht in: | European eating disorders review 2010-01, Vol.18 (1), p.58-66 |
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| creator | de A. Mariano, M. H. Kolotkin, R. L. Petribú, K. de N. L. Ferreira, M. Dutra, R. F. Barros, M. V. G. Almeida, N. C. de L. Filho, L. E. Rabelo, P. J. Monteiro, V. da Silva, B. F. |
| description | Purpose
The impact of weight on quality of life (IWQOL‐Lite) is a self‐administered instrument that assesses quality of life in obesity. It is composed of 31 items and five domains (physical function, self‐esteem, sexual life, public distress, and work). The aim of the present study was to evaluate reliability (test‐retest), internal structure, construct validity and discriminant validity.
Methods
IWQOL‐Lite scores were obtained from 89 people in a Weight Watchers institution (clinical sample) and 156 community volunteers (community sample). The participants were selected based on the same criteria: gender (female) and age (> 24 years), except for BMI. The community sample also completed the SF‐36, a generic measure of health‐related quality of life.
Results
The Brazilian IWQOL‐Lite demonstrated good test‐retest reliability, internal consistency, discriminative validity and convergent validity.
Conclusions
The IWQOL‐Lite is the first specific instrument validated in Brazil for assessing quality of life in obesity. The results reveal that IWQOL‐Lite is an instrument with good psychometric properties. Nevertheless, in some cases results were dissimilar to those reported in earlier studies using the original American English. Copyright © 2010 John Wiley & Sons, Ltd and Eating Disorders Association. |
| doi_str_mv | 10.1002/erv.969 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_733705218</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>1937674021</sourcerecordid><originalsourceid>FETCH-LOGICAL-c3819-6bca2f8622ea0d6a2ef1345f24da2806a5ead23794bc3c773392a4caa228236d3</originalsourceid><addsrcrecordid>eNp1kUtvEzEURi0EoqUg_gGy2ECFpvgxD3sJbSkVKQUEBLGxbjx3iMs8EtuTEn49jhKyQGLl60_HR1f-CHnM2QlnTLxEvzrRpb5DDjnTOmO6VHc3cyWynEt5QB6EcMNYygt1nxwIxopcVeqQLD-EtZ0PHUbvLMUVtCNEN_R0aCjQ1x5-u9ZBT1fowy6Oc6SuW4CNm9stuh_zNPV0OULr4noTtq5B-vxy-vF6kk1cxGPq-hD92GEfH5J7DbQBH-3OI_Llzfnn07fZ5Pri8vTVJLNScZ2VMwuiUaUQCKwuQWDDZV40Iq9BKFZCgVALWel8ZqWtKim1gNwCCKGELGt5RJ5tvQs_LEcM0XQuWGxb6HEYg0kvKlYIrhL59B_yZhh9n5Yzgue5YjoZ9zrrhxA8NmbhXQd-bTgzmw5M6sCkDhL5ZKcbZx3We-7vpyfgxRa4dS2u_-cx55--bnXZlnYh4q89Df6nKStZFWb6_sJ8u5rm39-JK3Mm_wBabp6w</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>214480982</pqid></control><display><type>article</type><title>Psychometric evaluation of a Brazilian version of the impact of weight on quality of life (IWQOL-Lite) instrument</title><source>MEDLINE</source><source>Wiley Journals</source><creator>de A. Mariano, M. H. ; Kolotkin, R. L. ; Petribú, K. ; de N. L. Ferreira, M. ; Dutra, R. F. ; Barros, M. V. G. ; Almeida, N. C. ; de L. Filho, L. E. ; Rabelo, P. J. ; Monteiro, V. ; da Silva, B. F.</creator><creatorcontrib>de A. Mariano, M. H. ; Kolotkin, R. L. ; Petribú, K. ; de N. L. Ferreira, M. ; Dutra, R. F. ; Barros, M. V. G. ; Almeida, N. C. ; de L. Filho, L. E. ; Rabelo, P. J. ; Monteiro, V. ; da Silva, B. F.</creatorcontrib><description>Purpose
The impact of weight on quality of life (IWQOL‐Lite) is a self‐administered instrument that assesses quality of life in obesity. It is composed of 31 items and five domains (physical function, self‐esteem, sexual life, public distress, and work). The aim of the present study was to evaluate reliability (test‐retest), internal structure, construct validity and discriminant validity.
Methods
IWQOL‐Lite scores were obtained from 89 people in a Weight Watchers institution (clinical sample) and 156 community volunteers (community sample). The participants were selected based on the same criteria: gender (female) and age (> 24 years), except for BMI. The community sample also completed the SF‐36, a generic measure of health‐related quality of life.
Results
The Brazilian IWQOL‐Lite demonstrated good test‐retest reliability, internal consistency, discriminative validity and convergent validity.
Conclusions
The IWQOL‐Lite is the first specific instrument validated in Brazil for assessing quality of life in obesity. The results reveal that IWQOL‐Lite is an instrument with good psychometric properties. Nevertheless, in some cases results were dissimilar to those reported in earlier studies using the original American English. Copyright © 2010 John Wiley & Sons, Ltd and Eating Disorders Association.</description><identifier>ISSN: 1072-4133</identifier><identifier>EISSN: 1099-0968</identifier><identifier>DOI: 10.1002/erv.969</identifier><identifier>PMID: 20054878</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Ltd</publisher><subject>Adult ; Brazil ; Cross-Sectional Studies ; Discriminant analysis ; Female ; Females ; Health Status ; Health Surveys ; health-related quality of life ; Humans ; IWQOL-Lite ; Middle Aged ; Obesity ; Obesity - psychology ; Patient Selection ; Psychological tests ; psychometric ; Psychometrics - standards ; Quality of life ; Quality of Life - psychology ; Reproducibility of Results ; Self Concept ; Surveys and Questionnaires - standards ; Validity ; Weight</subject><ispartof>European eating disorders review, 2010-01, Vol.18 (1), p.58-66</ispartof><rights>Copyright © 2010 John Wiley & Sons, Ltd and Eating Disorders Association.</rights><rights>Copyright John Wiley and Sons, Limited Jan/Feb 2010</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3819-6bca2f8622ea0d6a2ef1345f24da2806a5ead23794bc3c773392a4caa228236d3</citedby><cites>FETCH-LOGICAL-c3819-6bca2f8622ea0d6a2ef1345f24da2806a5ead23794bc3c773392a4caa228236d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Ferv.969$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Ferv.969$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20054878$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>de A. Mariano, M. H.</creatorcontrib><creatorcontrib>Kolotkin, R. L.</creatorcontrib><creatorcontrib>Petribú, K.</creatorcontrib><creatorcontrib>de N. L. Ferreira, M.</creatorcontrib><creatorcontrib>Dutra, R. F.</creatorcontrib><creatorcontrib>Barros, M. V. G.</creatorcontrib><creatorcontrib>Almeida, N. C.</creatorcontrib><creatorcontrib>de L. Filho, L. E.</creatorcontrib><creatorcontrib>Rabelo, P. J.</creatorcontrib><creatorcontrib>Monteiro, V.</creatorcontrib><creatorcontrib>da Silva, B. F.</creatorcontrib><title>Psychometric evaluation of a Brazilian version of the impact of weight on quality of life (IWQOL-Lite) instrument</title><title>European eating disorders review</title><addtitle>Eur. Eat. Disorders Rev</addtitle><description>Purpose
The impact of weight on quality of life (IWQOL‐Lite) is a self‐administered instrument that assesses quality of life in obesity. It is composed of 31 items and five domains (physical function, self‐esteem, sexual life, public distress, and work). The aim of the present study was to evaluate reliability (test‐retest), internal structure, construct validity and discriminant validity.
Methods
IWQOL‐Lite scores were obtained from 89 people in a Weight Watchers institution (clinical sample) and 156 community volunteers (community sample). The participants were selected based on the same criteria: gender (female) and age (> 24 years), except for BMI. The community sample also completed the SF‐36, a generic measure of health‐related quality of life.
Results
The Brazilian IWQOL‐Lite demonstrated good test‐retest reliability, internal consistency, discriminative validity and convergent validity.
Conclusions
The IWQOL‐Lite is the first specific instrument validated in Brazil for assessing quality of life in obesity. The results reveal that IWQOL‐Lite is an instrument with good psychometric properties. Nevertheless, in some cases results were dissimilar to those reported in earlier studies using the original American English. Copyright © 2010 John Wiley & Sons, Ltd and Eating Disorders Association.</description><subject>Adult</subject><subject>Brazil</subject><subject>Cross-Sectional Studies</subject><subject>Discriminant analysis</subject><subject>Female</subject><subject>Females</subject><subject>Health Status</subject><subject>Health Surveys</subject><subject>health-related quality of life</subject><subject>Humans</subject><subject>IWQOL-Lite</subject><subject>Middle Aged</subject><subject>Obesity</subject><subject>Obesity - psychology</subject><subject>Patient Selection</subject><subject>Psychological tests</subject><subject>psychometric</subject><subject>Psychometrics - standards</subject><subject>Quality of life</subject><subject>Quality of Life - psychology</subject><subject>Reproducibility of Results</subject><subject>Self Concept</subject><subject>Surveys and Questionnaires - standards</subject><subject>Validity</subject><subject>Weight</subject><issn>1072-4133</issn><issn>1099-0968</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp1kUtvEzEURi0EoqUg_gGy2ECFpvgxD3sJbSkVKQUEBLGxbjx3iMs8EtuTEn49jhKyQGLl60_HR1f-CHnM2QlnTLxEvzrRpb5DDjnTOmO6VHc3cyWynEt5QB6EcMNYygt1nxwIxopcVeqQLD-EtZ0PHUbvLMUVtCNEN_R0aCjQ1x5-u9ZBT1fowy6Oc6SuW4CNm9stuh_zNPV0OULr4noTtq5B-vxy-vF6kk1cxGPq-hD92GEfH5J7DbQBH-3OI_Llzfnn07fZ5Pri8vTVJLNScZ2VMwuiUaUQCKwuQWDDZV40Iq9BKFZCgVALWel8ZqWtKim1gNwCCKGELGt5RJ5tvQs_LEcM0XQuWGxb6HEYg0kvKlYIrhL59B_yZhh9n5Yzgue5YjoZ9zrrhxA8NmbhXQd-bTgzmw5M6sCkDhL5ZKcbZx3We-7vpyfgxRa4dS2u_-cx55--bnXZlnYh4q89Df6nKStZFWb6_sJ8u5rm39-JK3Mm_wBabp6w</recordid><startdate>201001</startdate><enddate>201001</enddate><creator>de A. Mariano, M. H.</creator><creator>Kolotkin, R. L.</creator><creator>Petribú, K.</creator><creator>de N. L. Ferreira, M.</creator><creator>Dutra, R. F.</creator><creator>Barros, M. V. G.</creator><creator>Almeida, N. C.</creator><creator>de L. Filho, L. E.</creator><creator>Rabelo, P. J.</creator><creator>Monteiro, V.</creator><creator>da Silva, B. F.</creator><general>John Wiley & Sons, Ltd</general><general>John Wiley and Sons, Limited</general><scope>BSCLL</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201001</creationdate><title>Psychometric evaluation of a Brazilian version of the impact of weight on quality of life (IWQOL-Lite) instrument</title><author>de A. Mariano, M. H. ; Kolotkin, R. L. ; Petribú, K. ; de N. L. Ferreira, M. ; Dutra, R. F. ; Barros, M. V. G. ; Almeida, N. C. ; de L. Filho, L. E. ; Rabelo, P. J. ; Monteiro, V. ; da Silva, B. F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3819-6bca2f8622ea0d6a2ef1345f24da2806a5ead23794bc3c773392a4caa228236d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adult</topic><topic>Brazil</topic><topic>Cross-Sectional Studies</topic><topic>Discriminant analysis</topic><topic>Female</topic><topic>Females</topic><topic>Health Status</topic><topic>Health Surveys</topic><topic>health-related quality of life</topic><topic>Humans</topic><topic>IWQOL-Lite</topic><topic>Middle Aged</topic><topic>Obesity</topic><topic>Obesity - psychology</topic><topic>Patient Selection</topic><topic>Psychological tests</topic><topic>psychometric</topic><topic>Psychometrics - standards</topic><topic>Quality of life</topic><topic>Quality of Life - psychology</topic><topic>Reproducibility of Results</topic><topic>Self Concept</topic><topic>Surveys and Questionnaires - standards</topic><topic>Validity</topic><topic>Weight</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>de A. Mariano, M. H.</creatorcontrib><creatorcontrib>Kolotkin, R. L.</creatorcontrib><creatorcontrib>Petribú, K.</creatorcontrib><creatorcontrib>de N. L. Ferreira, M.</creatorcontrib><creatorcontrib>Dutra, R. F.</creatorcontrib><creatorcontrib>Barros, M. V. G.</creatorcontrib><creatorcontrib>Almeida, N. C.</creatorcontrib><creatorcontrib>de L. Filho, L. E.</creatorcontrib><creatorcontrib>Rabelo, P. J.</creatorcontrib><creatorcontrib>Monteiro, V.</creatorcontrib><creatorcontrib>da Silva, B. F.</creatorcontrib><collection>Istex</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>European eating disorders review</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>de A. Mariano, M. H.</au><au>Kolotkin, R. L.</au><au>Petribú, K.</au><au>de N. L. Ferreira, M.</au><au>Dutra, R. F.</au><au>Barros, M. V. G.</au><au>Almeida, N. C.</au><au>de L. Filho, L. E.</au><au>Rabelo, P. J.</au><au>Monteiro, V.</au><au>da Silva, B. F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Psychometric evaluation of a Brazilian version of the impact of weight on quality of life (IWQOL-Lite) instrument</atitle><jtitle>European eating disorders review</jtitle><addtitle>Eur. Eat. Disorders Rev</addtitle><date>2010-01</date><risdate>2010</risdate><volume>18</volume><issue>1</issue><spage>58</spage><epage>66</epage><pages>58-66</pages><issn>1072-4133</issn><eissn>1099-0968</eissn><abstract>Purpose
The impact of weight on quality of life (IWQOL‐Lite) is a self‐administered instrument that assesses quality of life in obesity. It is composed of 31 items and five domains (physical function, self‐esteem, sexual life, public distress, and work). The aim of the present study was to evaluate reliability (test‐retest), internal structure, construct validity and discriminant validity.
Methods
IWQOL‐Lite scores were obtained from 89 people in a Weight Watchers institution (clinical sample) and 156 community volunteers (community sample). The participants were selected based on the same criteria: gender (female) and age (> 24 years), except for BMI. The community sample also completed the SF‐36, a generic measure of health‐related quality of life.
Results
The Brazilian IWQOL‐Lite demonstrated good test‐retest reliability, internal consistency, discriminative validity and convergent validity.
Conclusions
The IWQOL‐Lite is the first specific instrument validated in Brazil for assessing quality of life in obesity. The results reveal that IWQOL‐Lite is an instrument with good psychometric properties. Nevertheless, in some cases results were dissimilar to those reported in earlier studies using the original American English. Copyright © 2010 John Wiley & Sons, Ltd and Eating Disorders Association.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Ltd</pub><pmid>20054878</pmid><doi>10.1002/erv.969</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1072-4133 |
| ispartof | European eating disorders review, 2010-01, Vol.18 (1), p.58-66 |
| issn | 1072-4133 1099-0968 |
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| source | MEDLINE; Wiley Journals |
| subjects | Adult Brazil Cross-Sectional Studies Discriminant analysis Female Females Health Status Health Surveys health-related quality of life Humans IWQOL-Lite Middle Aged Obesity Obesity - psychology Patient Selection Psychological tests psychometric Psychometrics - standards Quality of life Quality of Life - psychology Reproducibility of Results Self Concept Surveys and Questionnaires - standards Validity Weight |
| title | Psychometric evaluation of a Brazilian version of the impact of weight on quality of life (IWQOL-Lite) instrument |
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